impulse
Plural: impulses
Noun
- an instinctive motive
- "profound religious impulses"
- a sudden desire
- "he bought it on an impulse"
- the electrical discharge that travels along a nerve fiber
- "they demonstrated the transmission of impulses from the cortex to the hypothalamus"
- (electronics) a sharp transient wave in the normal electrical state (or a series of such transients)
- the act of applying force suddenly
- "the impulse knocked him over"
- an impelling force or strength
- A thrust; a push; a sudden force that impels.
- A wish or urge, particularly a sudden one prompting action.
- The integral of force over time.
Verb
Verb Forms: impulsed, impulsing, impulses
- To give impetus or a strong urge to; to drive forward.
- To impel; to incite.
Examples
- His desire to win would often impulse him to take risky, high-scoring words.
- The impulse to learn drove me to study night and day.
- The total impulse from the impact will depend on the kinetic energy of the projectile.
- When I saw the new book, I couldn't resist the impulse to browse through it.
Origin / Etymology
Borrowed from Middle French impulser, from Latin impulsus.
For spelling, as in pulse, the -e (on -lse) is so the end is pronounced /ls/, rather than /lz/ as in pulls, and does not change the vowel (āuā). Compare else, false, convulse.
Synonyms
caprice, impetus, impulsion, momentum, nerve impulse, nervous impulse, neural impulse, pulsation, pulse, pulsing, urge, whim
Scrabble Score: 11
impulse: valid Scrabble (US) TWL Wordimpulse: valid Scrabble Word in Merriam-Webster MW Dictionary
impulse: valid Scrabble Word in International Collins CSW Dictionary